A linear variable differential transformer (LVDT) having an electrical stroke includes a probe axially movable along a length of the LVDT electrical stroke, a primary winding extending axially over the length of the LVDT electrical stroke, and a secondary winding extending axially over the length of the LVDT electrical stroke. The LVDT further includes a tertiary winding extending axially over less than the length of the LVDT electrical stroke, the tertiary winding at least partially overlapping with the secondary winding. An advantage of the LVDT in accordance with the present disclosure is that the accuracy of the position calculated from the tertiary winding is greater relative to the total stroke of the LVDT than that calculated from the secondary winding. This is accomplished while still fitting within the envelope of a standard single output LVDT.
LINEAR VARIABLE DIFFERENTIAL TRANSFORMER WITH MULTI-RANGE SECONDARY WINDINGS FOR HIGH PRECISION
2016-02-04
Patent
Electronic Resource
English
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